Unlike Datapoints based on Datapoint templates, instance specific datapoints can be deleted from an instance (Device, Asset, or Location)
All Datapoint operations require necessary permissions. Refer User Profiles document for more details.
Datapoint Dependency: If a datapoint is utilized in configuring alarm rules or other computational datapoints, it becomes a dependency for those elements. You must first remove the corresponding alarm rules and computational datapoints using it. Only then can you delete the instance-specific datapoint.